Apache Traffic Server

1. Apache Traffic Server Do we really need another proxy server? Leif Hedstrom, Akamai Technologies zwoop@apache.org @zwoop

2. Oh Absolutely!

3. Origins of the software

5. Plenty of FOSS Proxy Servers

6. Choosing an intermediary

7. The concurrency problem

8. Traffic Server process model

9. Traffic Server performance • 100,000 requests / sec with small content out of cache, for a single (quad-core + HT)box • 3.6Gbps out of a single box, with larger content (4x GigE NIC bonded) (best case scenarios)

11. http://www.flickr.com/photos/stuartpilbrow/3345896050/

12. Traffic Server making Ops easy • Traffic Server will restart automatically if it crashes • Traffic Server will kill itself if it isn’t responding • Traffic Server can reload most configurations without server restarts • Adding plugins is a matter of dropping in the shared object, and restarting • Stats and configurations are accessible via command line utilities and APIs

13. Plugin APIs - Continuations

14. plugin.config records.config partition.config hosting.config cache.config update.config ip_allow.config storage.config logs_xml.config parent.config remap.config icp.config

15. records.config storage.config remap.config

16. Critical in records.config CONFIG proxy.config.exec_thread.autoconfig INT 1 CONFIG proxy.config.exec_thread.autoconfig.scale FLOAT 2.0 CONFIG proxy.config.exec_thread.limit INT 2 CONFIG proxy.config.http.server_port INT 8080 CONFIG proxy.config.http.cache.http INT 1 CONFIG proxy.config.cache.ram_cache.size INT 512M CONFIG proxy.config.reverse_proxy.enabled INT 1 CONFIG proxy.config.url_remap.remap_required INT 1 CONFIG proxy.config.url_remap.pristine_host_hdr INT 0 CONFIG proxy.config.ssl.enabled INT 0 CONFIG proxy.config.ssl.server.cert.filename STRING server.pem

17. CONFIG proxy.config.url_remap.remap_required INT 1

18. CONFIG proxy.config.url_remap.remap_required INT 0

19. Q & A